Reinforced concrete construction



F. 0. WOLFE.

REHNFORCED CONCRETE CONSTRUCTION.

APPLICATION FILED OCT- 22, 1919.

Patented Sept. 6, 1921.

2 SHEETS-SHEET 1- FIGURE- 5 F'l GL/RE l lam-IRE 2 F. D. WOLFE.

REINFORCED CONCRETE CONSTRUCTION.

APPLICATION FILED OCT- 22, I919.

Patented Sept. 6, 1921.

2 SHEETS-SHEET 2- F' RE 4 F R 5 W A M NT R MQM /@4-XM I Has ATT RN Y PATENT OFFICE.

FRANK D. WOLFE, OF SAN JOSE, CALIFORNIA.

Specification of Letters Patent.

"REINFORCED CONCRETE CONSTRUCTION.

Patented Sept. 6, 1921.

Application filed October 22, 1919. Serial No. 332,445.

T 0 all whom it may concern: Be it known that I, FRANK D. lVoLFn, a

citizen of the United States, and resident of San Jose, in the county of Santa Clara and State of California, have invented certain new. and useful Improvements in Rein forced Concrete Construction, of which the following is a specification.

My invention relates to a novel method,

of constructing reinforced concrete walls and the like, and to novel means for carrying out this method of construction.

It is one object of my invention to provide a simple and effective method of constructing a concrete wall with spaced tubular air pockets formed therein. It is another object to rovide a simple, effective and highly efiicient method of properly placing the reinforcement in a concrete wall, and of salvaging the members used for placing said reinforcement. It is another object to provide a means for positioning the reinforcing elements of a concrete wall during the pouring of the concrete thatcan be easily removed from the concrete after it is poured and before the forms are removed. It is another object of my invention to provide a means of the character indicated that Will form aseries of spaced tubular air chambers in the concretewithout additional mechanical complication. A fifth object is to provide a means of the character indicated that is quickly and easily detached from the forms used during the pouring of the concrete and that, therefore, may be removed and used in the construction of other walls while the concrete in the first wall is setting. A sixth object is to provide a means of the character indicated that will satisfactorily support and position light or heavy reinforcement for thin or thick walls, such as wire mesh for thin walls of residences or bars for more heavyconstruction.

In the drawing: Figure l is a side elevation of a portion of a concrete foundation having a wire reinforcement held in position by means of one form of the invention herein described.

Fig. 2 is a sectional view on line 2-2 of Fig. 1 and indicating the position of the concrete forms and the anchor secured thereto.

Fig. 3 is a plan view of the construction shown in Fig. 1.

Fig. 4: is a vertical cross-section through a foundation wall carrying another form of my invention.

Fig. 5 is a side elevation of the elements shown in Fig. 4 and a portion of the foundatlOIl upon which it is mounted.

Fig. 6 is an enlarged horizontal cross-section on line 66 of Fig. 4.

ig. 7 is an enlarged cross-section on line 6-6 of F ig. l showing the method of disengaging the vertical and horizontal members.

Fig. 8 is a horizontal cross-section on line 6-6 of 'Fig. 1 after the vertical members have been withdrawn. Referring more particularly to the drawings, 1 indicates a portion of a foundation Wall having a'plurality of vertical uniformly spaced holes 2 formed therein a distance from the edges thereof as at 33.

In effecting my invention I place two semi-circular rods 4-t in each hole 2 with their flat faces in opposed relation to each other but separated at their upper ends as shown in dotted lines at l d The reinforcing wire mesh 5 is then placed in position between the upper ends of the several alined pairs of rods 4: and held in position thereon by pegs 6 inserted in holes 7 in one rod 4. The next lower strips are then placed in position and held by similar pegs 6, the several strips being preferably wired together as indicated at 8. Vhen all of the required strips are positioned as described the two rods 4 are brought together and secured at their upper ends and the pegs 6 removed, the reinforcing material being securely clamped between the pairs of rods and effectively prevented from collapsing.

Suitable forms indicated in dotted lines at 7 99 are now erected in any suitable manner and the upper ends of rods 4; secured thereto by any suitable means as tie 10. This straightening of the mounted strips 5 from an angular to a vertical position tends to place the same under tension and take up any slack that may have developed in positioning the same.

It may now be readily seen that by this construction, or slight variations thereof, any form of light or heavy reinforcement may be securely held in position midway between forms 9 while the concrete is being poured, and effectually prevents the same or any part thereof from being forced to the side of the wall during the pouring of said concrete, a fault that is common in the methods now employed.

lVhen the pouring of the concrete is completed the ties l0 and the rods 4-4 are drawn up vertically out of the partially set concret leaving a chamber therein of the of recesses 13 provided with holes 1 1 in their upper and lower surfaces and adjacent their outer edges, and a rod 151's inserted in said pipe in engagement with all of said holes and passing through said recesses. The horizontal reinforcing bars 16 are placed in position to overlap in recesses 13 as shown and back of rods 16 so that they are securely held in position during the placing of't'he concrete. After the concrete 17 has all been poured the rod 15 is withdrawn. The several pipes 11 are then turned through an arc of ninety degrees or more as shown in Fig. 7 while the concrete is suificiently strong to permit the turning thereof thereby disengaging bars 16 from recesses 13 after which the said pipes are withdrawn, leaving chambers in the concrete of substantially the same size as saidpipes as shown at 18,

and leaving the reinforcing bars 16 in the reinforcement supporting elements, 1nounting reinforcement elements thereon, erecting forms to inclose said supporting elements, anchoring said supporting elements between said forms, pouring the concrete, and finally withdrawing said supporting elements before said forms are removed.

2. The method of const-ructinga concrete wall which consists in providing a foundation, erecting on said foundation spaced reinforcement supporting elements having reinforcement elements arranged thereon,

erecting forms for receiving the concrete,

anchoring said supporting elements in substantially vertical position between said forms, pouring the concrete in said formsfto embed said reinforcement elements, and

,iinally removing said supporting elements before said forms are removed.

3. The method of constructing aconcrete wall which consists in providing a foundation with spaced sockets in the upper surface thereof, positioning reinforcement supporting elements in said sockets, positioning reinforcing elements on said supports, erecting forms for receiving the concrete, anchoring said supporting elements between said forms, pouring the concrete to embed said reinforcing and supporting elements,and finally withdrawing said supporting ele ments before the said forms are removed.

4:. The method of constructing a concrete wall which consists in providing a foundation with spaced vertically positioned sockets formed therein, positioning in each socket a pair of supporting'elements, 'conin a predetermined position in the concrete.v

6; A removable holder for the reinforcing elements in reinforced concrete construction, consisting of a pair of rods having transversely positioned alined orifices formed thereim'removable pegs to engage said orifices and support reinforcing material on said rods, and means for locking said rods together and holding the same in a predetermined position in the concrete.

7. The method of constructing aconcrete wall or the like consisting in the employment of a plurality of spaced reinforcement supporting elements, mount-ing reinforcement elements thereon, erecting forms to inclose said supporting elements, anchoring said supporting elements between said forms, pouring the concrete, and finally withdrawing said supporting elements,

8. Ina reinforced'co-ncrete construction, the combination with a support of reinforcemerit supporting elements removably mounted therein, erecting forms on the support, and means carried with the erecting forms and engageable with'the elements for looking and temporarily holding the elements in a predetermined position in the concrete.

FRANK n. 'WOLFE. 

